Mushroom thumb grip cap



FIG. 1 is a front perspective view of a first embodiment of a mushroom thumb grip cap, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a top view thereof;

FIG. 9 is a cross sectional view taken in the direction of line 9-9 on FIG. 3;

FIG. 10 is a front perspective view of a second embodiment of the mushroom thumb grip cap, showing my new design;

FIG. 11 is a rear perspective view thereof;

FIG. 12 is a front view thereof;

FIG. 13 is a rear view thereof;

FIG. 14 is a right side view thereof;

FIG. 15 is a left side view thereof;

FIG. 16 is a bottom view thereof;

FIG. 17 is a top view thereof; and,

FIG. 18 is a cross sectional view taken in the direction of line 18-18 on FIG. 12. 

CLAIM The ornamental design for a mushroom thumb grip cap, as shown and described. 